Hot pressure casting moulding method of laser pumping cavity Al2O3 ceramic reflector

Abstract

The invention belongs to the field of ceramic precision shaping technology, and specifically relates to hot pressure casting moulding, degreasing, and sintering technology of a laser pumping cavity Al2O3 ceramic reflector, and related technological parameters. The hot pressure casting moulding, degreasing, and sintering technology comprises following steps: 90-99% Al2O3 is mixed with paraffin, a surfactant, and the like, so as to prepare a slurry; the mixed slurry is delivered into a hot pressure casting moulding machine; injection pressure and temperature are adjusted, and injection and demoulding are performed so as to obtain a moulded blank; and the moulded blank is subjected to degreasing via low-temperature degreasing, and is sintered at a certain temperature so as to obtain the laser pumping cavity Al2O3 ceramic reflector. Influences of the related technological parameters, such as moulding pressure, moulding temperature, degreasing parameters, and sintering parameters, on performance of products are discussed, and the optimized technological parameters of the hot pressure casting moulding, degreasing, and sintering technology used for preparing the laser pumping cavity Al2O3 ceramic reflector are obtained.

Description

technical field [0001] The invention belongs to the technical field of ceramic precision molding, specifically laser pump cavity Al 2 o 3 Hot die-casting, degreasing and sintering technology of ceramic reflector and related process parameters. technical background [0002] Laser is one of the greatest inventions in the history of modern science. Since Xiao Luo and Towns first described the conditions of laser action under optical frequency in 1958 and Maiman's first ruby ​​laser was born in 1960, the development of laser science and technology has become more and more important. It is developing rapidly. It not only has a huge impact on the development of traditional disciplines and technologies, but also creates many fascinating new fields. At present, the application of laser in the fields of scientific research, industrial and agricultural production, information, communication, national defense, entertainment culture and environmental protection has become increasingl...

AI Technical Summary

Problems solved by technology

The first diffuse reflectors were made by incorporating metal oxide powders into glass or fused silica seals. The biggest disadvantage of powder reflectors was their low thermal conductivity.

To sum up, the coatings of the metal cavity and glass cavity commonly used in lasers are greatly affected by the external environment, easy to oxidize, and have poor stability, which in turn affects the life of the laser.